公开(公告)号：US20160024913A1

公开(公告)日：2016-01-28

申请号：US14775477

申请日：2014-03-10

Applicant: XACT DOWNHOLE TELEMETRY INC.

Inventor： Paul Camwell ,  Douglas S. Drumheller

IPC: E21B47/16

CPC classification number: E21B47/16 ,  E21B47/18 ,  E21B47/182 ,  G01V1/523 ,  G01V11/002 ,  G10K11/16

Abstract: An acoustic receiver for use on a drill string includes a housing attachable to the drill string; a first sensor mounted within the housing for measuring a first parameter at a first location on the drill string and for generating a first parameter signal representative of the first parameter; a second sensor mounted within the housing for measuring a second parameter at a second location on the drill string and for generating a second parameter signal representative of the second parameter; and a controller mounted within the housing and communicatively coupled to the first and second sensors. The magnitudes of the first and second parameters vary in proportion to magnitude of the acoustic wave and the first and second parameters have a quadrature phase relationship. The controller is configured to combine the first and second parameter signals to determine the magnitude of the acoustic wave.

Abstract translation: 用于钻柱的声学接收器包括可附接到钻柱的壳体; 安装在所述壳体内的第一传感器，用于测量所述钻柱上的第一位置处的第一参数并且用于生成表示所述第一参数的第一参数信号; 安装在所述壳体内的第二传感器，用于测量所述钻柱上的第二位置处的第二参数，并用于产生表示所述第二参数的第二参数信号; 以及控制器，其安装在所述壳体内并且通信地耦合到所述第一和第二传感器。 第一和第二参数的大小与声波的幅度成比例地变化，并且第一和第二参数具有正交相位关系。 控制器被配置为组合第一和第二参数信号以确定声波的幅度。

公开(公告)号：US09458712B2

公开(公告)日：2016-10-04

申请号：US14660833

申请日：2015-03-17

Applicant: XACT Downhole Telemetry, Inc.

Inventor： Paul L. Camwell ,  David D. Whalen ,  Douglas S. Drumheller

IPC: E21B47/12 ,  E21B47/14 ,  E21B47/16 ,  G01V11/00 ,  G10K11/16 ,  G10K11/162 ,  G10K11/168

CPC classification number: E21B47/16 ,  E21B47/12 ,  E21B47/14 ,  G01V11/002 ,  G10K11/16 ,  G10K11/162 ,  G10K11/168

Abstract: A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator behaving such that a “down” wave propagated toward the isolator is reflected back substantially in phase with an “up” wave propagated from the acoustic wave source away from the isolator. The acoustic isolator is similarly effective in reflecting “up” propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference. It causes substantially all of the emitted wave energy to travel in a chosen direction along the drill pipe, thus aiding the efficiency of acoustic telemetry said pipe.

公开(公告)号：US20150192010A1

公开(公告)日：2015-07-09

申请号：US14660833

申请日：2015-03-17

Applicant: XACT Downhole Telemetry, Inc.

Inventor： Paul L. Camwell ,  David D. Whalen ,  Douglas S. Drumheller

IPC: E21B47/16

CPC classification number: E21B47/16 ,  E21B47/12 ,  E21B47/14 ,  G01V11/002 ,  G10K11/16 ,  G10K11/162 ,  G10K11/168

Abstract: A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator behaving such that a “down” wave propagated toward the isolator is reflected back substantially in phase with an “up” wave propagated from the acoustic wave source away from the isolator. The acoustic isolator is similarly effective in reflecting “up” propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference. It causes substantially all of the emitted wave energy to travel in a chosen direction along the drill pipe, thus aiding the efficiency of acoustic telemetry said pipe.

Abstract translation: 叠层环，慢波声学遥测隔离系统和方法，用于管状组件，例如钻杆或包括声波发射器的生产管道，声隔离器的行为使得朝向隔离器传播的“向下”波被大体上反射回 同时具有从声波源远离隔离器传播的“向上”波。 声隔离器在反射从隔离器下方产生的“向上”传播波同样有效，因此进一步保护声波源免受可能的有害干扰。 它引起基本上所有发射的波能量沿着钻杆沿所选择的方向行进，从而有助于声学遥测所述管道的效率。